ohif-viewer/platform/core/src/utils/makeCancelable.js
Emanuel Fiuza de Oliveira ecaf578f92
fix: #1075 Returning to the Study List before all series have finishe… (#1090)
* fix: #1075 Returning to the Study List before all series have finished loading throws multiple errors in console

* fix: 🐛 Addressing review feedback from issue #1075

Adding support for cancelable pattern

Closes: #1075

* fix: 🐛 update unit test for exports

Closes: #1075
2019-11-05 16:47:54 -03:00

20 lines
497 B
JavaScript

export default function makeCancelable(thenable) {
let isCanceled = false;
const promise = Promise.resolve(thenable).then(
function(result) {
if (isCanceled) throw Object.freeze({ isCanceled });
return result;
},
function(error) {
if (isCanceled) throw Object.freeze({ isCanceled, error });
throw error;
}
);
return Object.assign(Object.create(promise), {
then: promise.then.bind(promise),
cancel() {
isCanceled = true;
},
});
}